Developing high-throughput multi-threaded telecommunication applications on Linux, unit testing, source code management, project management and extensive code/design reviews for quality assurance. Some of the projects:•High-throughput SMSC application with rich capabilities of load balancing, flow control and routing.•General purpose messaging gateway supporting various protocols such as SS7, SMPP and IN.•High performance tool to simulate a GSM network consisting of HLR, VLR, and MSC nodes.•Several medium to large C++ libraries to share common features between software components including a rich API to interact with different layers of SS7 protocol.